Clock.



' B. z. FRIEDMAN.-

GLOGK.

APPLICATION FILED SEPT. 30,1911.

Patented May 6, 1913.

4 SHEETS-SHEBT 1.

COLUMBIA PMNOGRAPH c0.. WASHINGTON. D. c.

B. Z. FRIEDMAN.

CLOCK.

APPLIOATION FILED SEPT.30,1911.

Patented May 6, 1913.

4 SHEETS-SHEET 2.

"' B. Z. FRIEDMAN.

4 CLOCK. APPLIUATION FILED SEPT. 30, 1911;

1,060,591 v Patented May 6,1913.

4 SHEETS-SHEET 3.

MUQIIA rumoamn couwuumo'rou. D. C.

'B. Z. FRIEDMAN.

CLOCK.

APPLICATION FILED SEPT. 30, 1911.

Patented May 6, 1913.

4 SHEBTSv-BHEET 4 Invento r,

BERNHARD Z. FRIEDMAN, OF FORT WORTH, TEXAS.

CLOCK.

Specification of Letters Patent.

. Patented May 6, 1913.

Application filed September 30, 1911. Serial No; 652,134.

To all whom it may concern:

Be it known that I, BERNHARD Z. FRIED- MAN, a citizen of the UnitedStates, residing at Fort lVorth, in the county of Tarrant and State ofTexas, have invented certain new and useful Improvements in Clocks, ofwhich the following is a specification.

This invention relates to electrically controlled self-winding secondaryclocks which are connected in series to be timed by a. master clock andmore particularly to tower clocks; and the object is to provide clockswhich will keep perfect time and which will wind themselves periodicallyand means are provided for preventing the clocks from running down incase of interruption of the electric current which is utilized inwinding the clock.

Another advantage is that either tower clocks or office clocks or acombination of tower and office clocks can be operated by theimprovements hereinafter set forth, and to which a striking mechanismmay be connected and operated.

Other objects and advantages will be fully explained in the followingdescription and the invention will be more particularly pointed out inthe claims.

Reference is had to the accompanying drawings which form a part of thisapplication and specification.

Figure 1 is a diagrammatic view, showing a tower clock in side elevationin series with an oflice clock and both cont-rolled by a master clockwhich is shown with the front casing removed. Fig. 2 is a plan view of atower clock. Fig. 3 is a side elevation of a tower clock, being theopposite side of the clock shown in Fig. 1. Fig. 4 is a side elevation,looking toward the left side of Fig. 3. Fig. 5 is a side elevation ofthe winding gearing or gearing which rotates the winding drum. Fig. 6isa detail view, being a rear face of the gear wheel which causes thewinding, showing the spring which starts and releases the windinggearing. Fig. 7 is a diametrical section of the gear wheel which carriesthe starting and releasing spring. Fig. 8 is a diametrical section ofthe hanger which carries the gearwinding-actuating wheel. Fig. 9 is avertical section of the plate which carries the starting and releasinggearing. Fig. 10 is an interior face view of the main driving wheel ofthe tower clock. Fig. 11 is a front View of the same together with thecooperating ratchet wheel, showing in dotted outline the spring whichprevents the clock from stopping during the winding of the clock. Fig.12 is an interior face view of the ratchet wheel which co-acts with themain driving wheel shown in Fig. 10. Figs. 13 and 14 are a plan view anda side elevation of the connection of the traveling switch with theshaft which moves the switch. Fig. 15 'is a plan view of the switchwhich directs a current of electricity into a motor for winding theclock, the cover of the switch being removed. Fig. 16 is a frontelevation of the gearing for operating a secondary clock. Fig. 17 is adetail view of the paying out wheel and cooperating parts. Fig. 18 is adetail view of the ratchet wheel and cooperating parts which co-act withthe paying out wheel. Fig. 19 is a detail view of the armature releasingmechanism. Fig. 20 is a detail View of the locking arm which locks thegovernor.

Similar characters of reference are used to indicate the same partsthroughout the several views.

The invention is shown as a complete operating mechanism with a towerclock and another secondary clock in series with a master clock. Themaster clock is located in a casing 1. The clock is provided with asixty beat pendulum 2, a weight 3, a minute hand 4, and an hour hand 5.The arbor 6 of the escape wheel is shown projecting through a movementplate 7 This arbor carries the second hand. The make and break contactis controlled from this arbor. A block 8 of insulation is attached tothe movement plate 7. A spring bar or strip 9 is attached to the block 8and is bent under the block and then extended downwardly. A set screw 10is provided for varying the position of the spring 9. This screw 10passes through the spring 9 into a block 8 and the spring rests againstthe head of screw 10 which can be screwed through the spring more orless to hold the spring closer to the block or farther from the block 8.Another spring bar 11 is attached to the opposite side of the block 8and projects downwardly in close proximity to the spring bar 9. Thespring bar 11 carries a bar of insulation 12 so that the contact willnot be closed when the cam lever 13 presses the bar 9 against the bar12. The cam lever 13 is rigid with the seconds hand arbor 6. The springbar 9 carries the make and break part 14 of the contact closing devices.The point 14 is screwed into the bar 9 more or less and is fixed in thedesired position by a lock-nut 16. The other contact point 15 isattached to the bar 11. The tension of the bar 9 and the length ofcontact can be varied by the screw 10. The cam lever or hand 13 willmake a contact every minute. contact every thirty seconds a lever withtwo arms can be mounted on the arbor 6 similar to the lever 13. Theaction of making and breaking contact will be as follows: The lever 13revolves aboutthe arbor 6 and will come against the spring bar 9 firstand press this bar against the bar 12, but will soon pass the bar 9 andthen it will press against bar 12. Simultaneously the bar 9 will springback to its normal position and bring the point 14 against the point 15.This is made possible because the lever 13 is pressing the bar 11 towardthe point 14. It is intended that when the bar 9 comes back to normalposition the contact is made at that instant. On one oscillation of thependulum, the lever 13 releases the bar 9 and the contact is made. Onthe next oscillation of the pendulum, the lever 13 releases the bar 12and the contact is broken. The spring bar 11 is electrically connectedto the battery 17 by a wire 18. The other pole of the battery 17 iselectrically connected to the electro-magnet 19 by a wire 20. The springbar 9 is electrically connected to the other pole of the magnet 19 by awire 21. Means are provided for manual breaking of the current which ispassing through the wire 21. The wire 21 is intercepted and one endconnected to a block 22 and the other end connectedto a block 23.Connection is made through the blocks 22 and 23 by a removable plug 24.The object of the plug 24 is to regulate the time of secondary clocks ortower clocks. If these clocks are too fast, they can be stopped bywithdrawing the plug 24, thus interrupting the operating current. Thisplug can be withdrawn and held long enough to regulate the time and theninserted again. Provision is made for mov ing up the secondary clocks. Awire 25 is connected to the wire 21 and to a push button 26 and the pushbutton 26 is connected to the wire 18 by a wire 27. The circuit can beclosed by the button 26 instead of through the operation of the lever13. If the clock is making one contact to a minute, every push on thebutton 26 will move the secondary clocks up a minute.

The operation of the secondary clocks is accomplished as follows:lVhenever the con tact is closed by the master clock, the magnet 19 isenergized and an armature 28 closes a circuit for the secondary clocks.The connection is made as follows: A battery 29 is electricallyconnected to a bar 30 by a wire 31 which is insulated from the magnet19.

If it is desired to make the.

The armature closes the connection with the bar 30. The pivotalconnection 32 of the armature is also insulated from the magnet 19. Aleading out wire 33 is connected to the armature 28 and goes to thefirst secondary clock 34. hleans are provided for breaking the circuitfor the secondary clocks. An arm 35 is made rigid with the clock casing1 and a spring 36 is attached to the armature 28 and to the arm 35. Themagnet 19 when energized will overcome the spring 36 and as soon as themagnet 19 is deenergized, the spring 36 will draw the armature 28 out ofcontact with the bar 30 and thus break the current. This will make acurrent run through the secondary clocks every time a contact is closedby the master clock and the current through the secondary clocks will bebroken as soon as the master clock breaks the contact.

38 indicates the wire which is connected with battery 29 and cotiperateswith the wire 33 to complete the circuit.

A small secondary clock 34 is placed within the master clock casing 1for convenience in comparing the time of the secondary clocks with themaster clock. It will have the same time as the other secondary clocksand the tower clock. If it has not the correct time, it and the othersecondary clocks can be corrected as above indicated.

The tower clock is illustrated in Figs. 1, 2, 3, and 4. The wire 33connects to one pole of the magnetic coil composed of coils 37 and 38 onthe approach to the tower clock and is intercepted and connected to theother pole as the wire leaves the tower clock. With a sixty beat masterclock there is a make and break of the circuit through the coils 37 and38 every sixty seconds. VVhenever these coils are energized, theyattract an armature 39 which is carried by a pivoted post or trigger 40.The trigger 40 has a hook 41 which engages a trip arm 42 which is rigidwith the shaft 43. The arm 42 is held stationary until the armature 39draws the hook 41 out of engagement with the arm 42. As soon as this isdone, the arm 42, being held under tension, will commence to revolve andthe shaft 43 will release a train of gearing which will commence to run.The current through coils 37 and 38 is broken instantly and a spring 44moves the armature 39 away from the coils 37 and 38, but the trigger 40cannot go back to normal position because an arm 45 integral with thetrigger bears against the crown 46 of a cog wheel 47 and this crownprevents the hook 41 from engaging the arm 42 until the crown 46revolves far enough to bring the cut-out in the crown opposite the arm45, as shown in Fig. 1. Then this cut-out comes opposite the arm 45, thearm will fall into the cut-out and assume its normal position and engagethe arm 42 and thus stop the train of gearing. This operation of thetrain of gearing will cause a movement of the minute hand one minutespace on the dial of the clock. The trigger 40 is pivotally mounted inarms 48 which are rigid with the frame 49. A screw 50 passes through thetrigger 40 and rests against a rigid stud 51 to limit or regulate themovement of the trigger 40 and consequently the armature 39 back towardthe coils 37 and 38. The screw can be screwed more or less through thetrigger 40 for this purpose. Means are also provided to prevent thetrigger from falling too far toward the crown 46. A post 54 is attachedrigidly to the frame 49, and carries a horizontal arm 53. (See Figs. 1and 3.) A screw 52 is mounted in the arm 53 and can be screwed more orless through the arm 53 to bear against the trigger 40. The arm 45provided with an antifriction roller 55 which bears against the crown46. The arm 42 is provided with an antifriction roller 56 (see Fig. 20)which bears against the hook 41 of trigger 40.

The driving mechanism of the tower clock is actuated by a weightcontrolled drum 57 which is rigid with a shaft 58. A ratchet wheel 59 isrigid with the drum 57. A ratchet wheel 60 and the main driving wheel 61are loosely mounted on the shaft 58. The main drive wheel 61 and theratchet wheel 60 move with each other by reason of the pin 62 which isrigid in the wheel 61 and which projects into the slot 63 in wheel 60. Aspring 64 is attached at one end by a pin 65 to wheel 61 and at theother end attached to the wheel 60 by a pin 66 which is inserted in ahole 67 in wheel 60. The object of this spring 64 is to keep the wheel61 going when the drum 57 is being turned backward for winding purposes.Tension for the spring 64 is obtained by reason of the weight pulling onthe drum 57 and ratchet wheel 59. The pin 62 will in such case projectinto the slot 63 and limit the movement of the wheels relative to eachother and thus prevent the Wheel 60 from turning far enough to break thespring 64. The wheel 60 is locked to the wheel 59 by a pawl 68 which ispivotally mounted on the face of the wheel 60 and by a spring 69 whichis also attached to the face of the wheel 60 and presses on the pawl 68.Consequently when the drum 57 is turning it will drive the wheel 60 andalso the wheel 61 which must move with the wheel 60. hen the drum isbeing turned backward for winding, the pawl 68 will ride over the teethof wheel 59. While this winding is going on the spring 64 will keep thewheel 61 goingfor operating the clock. When the wheel 61 is driving, itdrives the pinion 70 which is rigid with shaft 71 and conse' quentlydrives cog wheel 72 which is rigid with shaft 71. Cog 72 drives pinion73 which is rigid with shaft 74.

Shaft 74 drives cog wheel 47. Cog 47 drives pinion 75 which is rigidwith shaft 43. It may be said tint this train of gearing just describedstands motionless approximately fifty-seven seconds during each minute,being locked against movement as above described and released when themaster clock closes the circuit. hen the train of gearing is released,it moves approximately three seconds. During the running of the gearingthe pinion 75 will turn or revolve eight times, geared as illustrated inthe drawing. Means are provided to relieve the jar of the arm 42 comingagainst the hook 41. Wings 76 are attached to collars 77 which areloosely mounted on the shaft 43. (See Figs 1 and 3.) A spring 78 isattached to one of the wings and is bent behind the shaft 43 in areduced portion of the shaft and then presses against the other wing.The wings cannot move axially on the shaft 43 because the spring 7 8rests in the reduced porticn and the shoulders on the shaft at each sideof the spring prevent the movement of the wings. l/Vhen the shaft 43 isrevolving the spring 78 will bear on the shaft 43 with sufiicientfriction to make the wings revolve with the shaft and thus tend toprevent too fast a revolution of the shaft and thus make the arm 42 comeagainst the hook 41 with less force than ifthe wings were not on theshaft. When the shaft stops the wings will revolve a few times bycentrifugal force until the centrifugal force gradually dies. A gravitypawl 90 engages wheel 60 and prevents this wheel and wheel 61 fromturning backward during the winding of the clock and thus conserves thetension of spring 64 for driving purposes during the winding. A hearing91 for pawl 90 is attached to frame 49.

The power of the gearing last above described is transmitted to thegearing for moving the hands of the clock by the gear wheel 61. A bevelgear wheel 79 is rigidly connected with the gear wheel 61 by posts orarms 80 which are rigidly attached to both gear wheels. Gear wheel 7 9drives a bevel gear wheel 81 which is rigidly attached to the shaft 82.A bearing 83 is provided for the shaft 82. The tower clock is shownprovided with means for operating four sets of hands. A bevel gear wheel84 is rigid with shaft 82 and meshes with four bevel gear wheels 85which are journaled in bearings 86 which are attached to a plat form 87which constitutes a part of frame 49. The gear wheels 85 drive orrevolve four arms 88. These arms constitute shafts for moving the minuteand hour hands about the dials. Shaft couplings 89 connect the arms 88with the shafts of the wheels 85. Shaft couplings or universal joints 92connect the arms 88 with the hour and minute hand gearing 93. Hour hands94 and minute hands 95 are provided for pointing out the time on thedials 96.

Means are provided for winding the drum 57. A cog wheel 97 is rigid withthe main driving shaft 58 and drives a pinion 98 which is looselymounted on shaft 99 which constitutes a pivot bolt for mounting thewheel 100 and pinion 98 on the hanger 101. The bolt 99 is held in placeby double nuts 102 and 103. The hanger 101 is pivotally mounted on aplate 10% by a bolt 105. The wheel 100 has an internal ratchet and acoil spring 106 is attached at the inner end to the hub 107 of thehanger 101 and this spring is adapted to engage the teeth 108 of thisinternal ratchet. The winding operation is accomplished by means of amotor 109 which is provided with a shaft 110 and this shaft drives apinion 111 which is provided with a shaft 112 which is rigidly connectedwith the shaft 110. The shaft 112 has a reduced portion or pivot whichis ournaled in the attaching bolt 105. The motor dri\'*es pinion 111which drives cog wheel 100. Cog wheel 100 drives pinion 98, being rigidor integral therewith, and pinion 98 drives cog wheel 97 which drivesshaft 58 and drum 57 for winding the weight. The pinion 98 standsnormally disengaged from the wheel 97. WVhen the motor is energized andcommences to run, the pinion 111 will drive the cog wheel 100 and pinion98 and this operation will wind the spring 100 which will gather tensionas the turning of the wheel 100 continues. The continual turning of thecog wheel 100 will soon cause tension enough in the spring 106 to forcethe hanger 101 to swing on its pivot and bring the pinion 98 in meshwith wheel 97. This operation will start the winding of the clock. Theturning of the wheel 100 long enough to wind the clock would wind thespring 106 enough to break it. For this reason the spring is soconstructed that it will slip off of the teeth 108, the spring goingbackward one tooth at a time. This will continue until the clock iswound when the circuit which is causing the motor 109 to run will bebroken, as hereinafter described, and the motor will stop running. Thespring 106 will have enough tension to run the motor a few revolutionsbackward. This operation will disengage the pinion 98 from the ccg wheel97. The pinion 98 is thus automatically engaged and disengaged from thecog wheel 97 which accomplishes the winding of the clock drum. A hook113 is attached. to the spring 106 for engaging the teeth 108.

The gear winding will not commence until the motor 109 is connected witha supply source of electricity. This is done automatically by atraveling switch which is operated from the main drlving shaft 58.

A cog wheel 114 is mounted on shaft 58. This cog wheel 114: drives apinion 115. This pinion drives a cog wheel 116 which is rigid with theshaft 117. This shaft is a screw-threaded shaft, as shown in Fig. 18,and is continually driven by power transmitted from the main drivingshaft 58. The traveling switch is operated by this screw threaded shaft.

118 indicates the switch.

A rod 119 is mounted in the frame 419. Bars 120 are rigid with the rod119. The arms 120 are provided with a brace 121. The arms 120 carry thetrip 122 which is held rigidly in place and this trip consists of aswell or enlarged place 123 in the rod 122 which is rigid in the arms120. The switch 118 is mounted on and attached to a block 12 1 which isslotted and perforated to receive the screw shaft 117. A bar 125 isattached to the block 12 1 and engages the rod 119 loosely so that thebar will slide on the rod. Contacts 127 are mounted on a block ofporcelain 126. A movable spring contact 128 is perforated and mounted ina cavity in the block 126 and receives the rod 122 in a perforation. Theperforation in the movable contact is large enough for the rod 122 topass without touching the contact but not large enough to pass the swell123 without touching it. Insulation 129 is provided to prevent theswitch from coming in contact with the arms 120.

The drawings, Fig. 15, show the contact made for operation. The switchtravels as the shaft 117 revolves. Then the contact is not made thespring contact 128 stands in the position of the dotted outline. As soonas the switch has traveled far enough for the swell 123 to pass throughthe movable contact, the spring will throw the contact from the dottedoutline position and close a circuit. This operation takes place as soonas the highest point of the swell passes through the movable contact.This operation will start the motor 109 and the winding of the clockcommences. As soon as the winding operation commences the shaft 58 isturned in the opposite direction. This reverses the train of gearingwhich drives the shaft 117, consequently the switch will commence totravel in the opposite direction. The swell will again pass through themovable contact which operation will cause the contact to spring to theposit-ion of the clotted outline and break the current through motor.The clock is wound by this time. The motor will stop. The shaft 117 isthreaded so that the clock will be wound every twelve hours, that is,the shaft is threaded so that the switch will travel far enough intwelve hours to make the contact for winding the clock. The threads onthe shaft are extended still farther and if there should be no currentor power, the contact will remain in place and the switch will continueto travel so that the clock will run 14 hours longer. If during thistime, the power should come in the contact, the clock would be wound. Ifthere should be no current during the twenty-four hours, any suitablealarm may be set off by the weight to give notice that the clock isrunning down with no current for re-winding the clock.

A wire 130 is connected to the switch 118 and to the motor 109. Theother wire 131 is connected to the switch 118 and runs to the powerhouseand then to the motor 109. A cable 132 for winding on the drum 57runs under a pulley wheel 133, then over a pulley wheel 134, then undera pulley 135 to which is suspended a weight 136, and then extended up toa stationary bar 137 and attached thereto.

The escapement mechanism for operating the secondary or oflice clocks isillustrated in Figs. 16, 17, and 18. The escapement wheel 138 is mountedon a shaft 139 and is operated by a magnet 140 and by a bar 141 whichcarries an armature 141 which carries pins 142 and 143 and a ratchetwheel 144 is loosely mounted on the shaft 139. The magnet 140 isenergized by the make and break mechanism of the master clock. When themagnet is energized, the armature 141 is drawn toward the magnet. Itturns the ratchet wheel 144 one tooth and this creates tension of thespring in the barrel 145 of the ratchet wheel 144. The spring will causethe escapement wheel 138 to turn. At the same time the lever 141 willraise the pin 143 out of engagement with the wheel 138, allowing thiswheel to turn, and will place the pin 142 into engagement with the wheel138. The wheel 138 will turn the distance of one tooth with eachreleasing of the wheel by pin 143 and each engaging of the wheel by pin142. When the master clock breaks the circuit, the spring 146 will drawthe armature away from the magnet 140 and the armature lever will restagainst the regulating screw 147. This will lift pin 142 out ofengagement with wheel 138 and place the pin 143 in engagement with thatwheel. WVhen the armature lever 141 is drawn toward the magnet thespring-pressed dog 148 turns the wheel 144 and the spring dog 149 willlock the wheel 144 against backward turning. The turning of theescapement wheel 138 and of the ratchet winding wheel 144 is done at thesame time. When the escapement wheel 138 turns the pinion 150 which isrigid therewith turns also. The pinion 150 drives a cog wheel 151. Thecog wheel 151 drives the shaft 152 to which is attached hour and minutehands and the hand wheels which are common to all clocks.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is,-

1. In a clock, the combination of a train of gearing, a drum and aweight for operating said gearing, and means for winding said drumconsisting of an electric motor provided with gearing, a winding gearingoperatively connected with said drum, the gearing of said motor beingnormally disconnected from said winding gearing, a tension spring insaid motor gearing for automatically causing said motor gearing toengage said winding gearing for driving the winding gearing, and atraveling switch actuated by said train of gearing for periodicallyoperating said motor.

2. In a clock, the combination of a train of gearing, a drum and aweight for operating said gearing, a winding" gearing operativelyconnected with said drum, an elec tric motor provided with gearingnormally disconnected from said winding gearing but adapted to engagesaid winding gearing when the motor is running, and a traveling switchoperated by said train of gearing adapted to close a circuit in saidmoto-r periodically for operating the motor.

3. In a clock, the combination of a train of gearing, a drum and weightfor operating said gearing, a winding gearing oper= atively connectedwith said drum, an elec tric motor provided with gearing normallydisconnected from said winding gearing, and means carried by said motorgearing for automatically causing the motor gearing to engage thewinding gearing when the motor is running and for automaticallydisengaging the motor gearing from said winding gearing when the motorstops driving the winding gearing.

4. In a clock, the combination of a train of gearing, a drum and aweight for operating. said gearing, a winding gearing operativelyconnected with said drum, an electric motor provided with gearingnormally disconnected from said winding gearing,-

said motor gearing including a cog wheel' provided with an interiorratchet, a hanger for said motor gearing, and a tension springcountersunk in the meeting faces of said cog wheel and said hanger withone end attached to the hanger and the other end adapted to engage saidrack for auto-matically causing said motor gearing to engage saidwinding gearing when the motor is running and to disengage said motorgearing from the winding gearing when the motor stops running.

5. In a clock, the combination of a train of gearing, a drum and aweightfor operating said gearing, a winding gearing operatively connected withsaid drum, an electric motor provided with gearing normally disconnectedfrom said windinggearing, means carried by said motor gearing forautomatically causing the motor gearing to engage the winding gearingwhen the motor is running and to disengage said winding gearing when themotor stops, a screw threaded shaft operatively connected with saidwinding gearing and said train of gearing, a traveling switchoperatively connected with said screw threaded shaft for operating saidmotor periodically, and a tripping device in the path of said switch forclosing the contact in said switch when the switch is driven by saidtrain of gearing and for breaking the contact when said switch is beingdriven by said winding gearing.

6. In a clock, the combination of a train of gearing, a drum and aweight for operating said gearing, a winding gearing oper' ativelyconnected with said drum and with said train of gearing, means foroperating said winding gearing, a screw threaded shaft operativelyconnected with said winding gearing and with said train of gearing, atraveling switch operatively connected with said screw threaded shaft,and a tripping device in the path of said switch for closing the contactin said switch when being driven by said train of gearing and forbreaking the contact in said switch when the switch is being driven bysaid winding gearing whereby said switch operates said winding operatingmeans periodically.

7. In a clock, the combination of a train of gearing, a drum and aweight for operating said gearing, a winding gearing operativelyconnected with said drum, an electric motor provided with gearingnormally disconnected from said winding gearing, means carried by saidmotor gearing for automatically causing the motor gearing to engage saidwinding gearing when the motor is running and to disengage said motorgearing from the winding gearing when the motor stops, a screw threadedshaft operatively connected with said train of gearing and with saidwinding gearing, and a traveling switch operatively connected with saidscrew threaded shaft for operating said motor periodically.

In testimony whereof, I set my hand in the presence of two witnesses,this 27th day of September, 1911.

BERNHARD Z. FRIEDMAN.

Witnesses:

A. L. JAcKsoN, J. WV. STITT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

